[DBBackupRotation] Try to fix cron commands order in Dockerfile

pica-db-backup-rotation/CHANGELOG.md

 # Changelog
 
+## v1.4 (17-06-2020)
+
+* Fix crontab not scheduling because of instruction orders in Dockerfile
+
 ## v1.3 (05-04-2020)
 
 * Use `python:3.8-alpine` as base image instead of `python:3-slim-buster` (it comes already with `cron`, so we don't have to install it)

pica-db-backup-rotation/Dockerfile

@@ -5,5 +5,5 @@ RUN pip install --no-cache-dir "rotate-backups<9" "python-crontab<2.5"
 COPY start_rotation.py /start_rotation.py
 
 CMD /start_rotation.py && \
-    crond -f && \
     crontab /crontab.conf
+    crond -f -d 8 && \

pica-db-backup-rotation/docker-compose.yml

@@ -2,7 +2,7 @@ version: "3.7"
 
 services:
   db-backup-rotation:
-    image: registry.picasoft.net/pica-db-backup-rotation:1.3
+    image: registry.picasoft.net/pica-db-backup-rotation:1.4
     container_name: db-backup-rotation
     volumes:
       - /DATA/BACKUP/:/backup/